Means for transmitting fluid under pressure.



Patented July I7, i900. W. S. HALSEY. MEANS FOR TBANSMITTING FLUID UNDER PRESSURE.

(Application med un. 29, 1899.)

(No Model.)

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VILLIAM S. HALSEY, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR TO THE PNEUMATIC CRANE COMPANY, OF SAME PLACE.

EMANS FOR TRANsMlT-i-ING FLUID UNDER Paneel-JRE.

SPECIFICATION raming part of Letters Patent No. 653,802, cated July 1v, 1900. Application filed Marcil Z9, 1899. Serial No. 711,028. (No model.)

To @ZZ whom, it may concern,.-

Be it known that I, WILLIAM S. HALsEY, a citizen of the United States, residing at Pittsburg, in the county of Allegheny, State of Pennsylvania, have invented or discovered acertain new and useful Improvement in Means for Transmitting Fluid Under Pressure, of which improvement the following is a 'speciication- The object of my invention is to provide an improvement in means for transmitting iiuid under pressure; and to this end it consists in new and improved means by which iiuid under pressure may be transmitted from a source of supply to a relatively-movable receiver; and it further consists in certain combinations and features of construction, as hereinafter set forth.

In the accompanying drawings,which illustrate an application of my invention, Figure 1 is a longitudinal section through a supplypipe or reservoir and through a movable rcceiver which is in communication therewith; Fig. 2, a plan view, and Fig. 3 an elevation, on a smaller scale, of the supply-pipe and reservoir; and Figs. 4 and 5 are detail Views, on a larger scale, showing the construction of the valve mechanism.

My present invention is specially adapted to be employed for the purpose of supplying compressed air or other fluid under pressure to motors on traveling cranes, elevators, locomotives, or railway-cars, and is an improvement on the invention covered by the Patent No. 532,198, granted to me January 8, 1895. Its employment is not, however, limited to a connection with a motor or any special means of utilizing the iiuid under pressure.

As shown in the drawings, my invention comprises a main supply-pipe 1 and a exible receiver 2, mounted thereon and adapted to slide along both the straight and curved portions of the supply-pipe, with new and improved valve mechanism adapted to be actuated by the receiver for opening communication between the interior of the pipe and the interior oi'V the receiver at suitable intervals, whereby continuous communication for the transmission of fluid under pressure may be maintained between the pipe and the receiver at all points in the travel of the receiver, so

that fluid under pressure may be delivered to a motor connected to or moving with the receiver or may be employed for other purposes for which it may be needed at different points.

An important Afeature of my invention is the combination, with the supply-pipe, of a flexible receiver which is adapted to be moved along curved as well as straight portions of the supply-pipe while maintaining a fluidtight connection therewith.

The circular cross-sectional form of the receiver permits the employment of simple packing devices by means of which a fluidtight joint may be secured at the ends of the receiver, and this circular form, together with the corrugated form, also permits the employment of material ofrsufiicientthinness to se.

cure the desired flexibility without danger of weakness in the receiver.. Y

` As shown in the drawings, the receiver is formed of thin corrugated metal tubing and is provided at its ends with. a simple form of packing which forms the air-tight joints with the supply-pipe. Intermediate of its ends the receiver is provided with a discharge port or passage 8, opening into a passage 4, through which ii uid under pressure may be discharged. The passage 3, as shown, is formed in a short tubular section 5 between the two sections of corrugated tubing; but, if preferred, the corrugated portion of the receiver may be made in one section and the discharge-port formed therethrough and connected with the discharge pipe or passage in some other manner. V

At intervals in the length of the pipe 1 are provided comparatively-short sections 6, in which are located the valve mechanisms which are adapted to be operated by movement of the receiver to open communication between the supply-pipe or reservoir 1 and the receiver 2 whenV the receiver slides over and surrounds such section. A partition 7 is formed in each of the sections 6, and into this partition is screwed a valve-seat 8 for a valve 9, which controlsa passage 10, through which fluid under pressure may pass from the supply-pipe into the box 12, from which it passes through the ports 15 into the receiver when the valve is opened. The valve- IOO seat S is formed on an extension 11 of a box o r casing 12, in which are located two tappets 13 and a flexible lifting-lever 14, which is loosely connected at its ends with the tapeled on its inner surface in order that it may pass under and engage with the tappets 13 and push them inward, so as to move the lever 14 and open the valve 9. As shown on the left-hand end of Fig. 1, one of the tappets 13 is in engagement with the end of the receiver and is pushed inward, so as to lift one end of and bend the lever without unseating the valve.

When the sections 6 are outside of the receiver, the valves 9 are held closed by the pressure of fluid within the supplypipe,'and the lower ends of the valves bear on the levers 14 and hold the tappets in their outer positions. On account of the flexibility of the lever 14 and the fluid-pressure acting on the valve one of the tappets may be pushed in at a time without unseating the valve; but when both tappets in the same section are pushed in at the same time both ends of the lever to which they are connected will be moved inward and the resistance to bending will be great enough to unseat the valve.

When the valve is lifted from its seat, the pressure on the lever is relieved, and the valve then assumes the position shown in the valve mechanism near the right-hand end of Fig. 1 of the drawings.

In the operation of my improvement the supply-pipe is charged with fluid under pressure, and the passages 10, through which fluid is discharged therefrom, are located at such intervals apart that two or more of them may open into the receiver at the same time, so that when the receiver passes beyond one of them or moves so as to permit the closing of one of them the next dischargepassage in the direction in which the receiver is moving will still be open to the receiver and a connection of the receiver with the supply-pipe will be continuously maintained.

All of the valves in the supply-pipe which are at any time located outside of the iiuidtight joints of the receiver are held closed by the fluid-pressure within the supply-pipe,and

Vas the receiver moves along the pipe these valves are opened one after the other as the packed joint of the receiver passes toward and over them, so as to cause the air-space of the receiver to surround the ports 15.

When the end of the receiver is approaching one of the valve mechanisms which is outside of the receiver, the rst tappet which passes into the receiver is pushed inward without opening the valve, and the valve remains seated until the second tappet is pushed inward, at which time the passage controlled by the valve is in position to discharge iuid into the chamber of the receiver. Thereafter as the receiver moves along the tappets are held in position by contact with the bearingstrips 19 and the projection 2O on the part 5, which connects the two parts of the corrugated tube.

My invention provides a simple, highly-efficient, and comparatively-inexpensive construction by which the movable receiver is adapted to move around curves without any interference with or interruption of the delivery of iiuid from the supply-pipe to the receiver.

When my improvement is employed in connection with and for the purpose of supplying traveling cranes, the supply-pipe 1 will ordinarily be placed in a horizontal position and the curved portions will lie in a horizontal plane; but asv its employment is not limited to that purpose the supply-pipe may be placed at any desired inclination, and when employed in elevator service the position of the pipe will ordinarily be vertical.

When employed for the purpose of supplying traveling cranes, the supply-pipe is ordinarily placed in a position parallel with the direction of travel of the crane and the re*- ceiver is connected with and moves alongl with the motor by which the crane yis operated.

While the corrugated form of the receiver shown in the drawings Imay for many reasons be preferred, my invention isnot limited to that particular form, since for some purposes the form of the corrugations and the general form of the receiver maybe variedr Il found desirable, the receiver may be made of other exible material, such as rubber, or may be a composite structure in which rubber or other flexible material is employed.

I claim as my invention and desire to secure by Letters Patent-- Y 1. The combination, with a supply-pipe, or reservoir, of means for discharging iiuid from the supply-pipe at intervals in its length, and a movable flexible receiver surrounding and adapted to move along the pipe, or reservoir, and to open communication between the pipe, or reservoir, and the receiver' by such movement.

2. The combination, with a curved supplypipe, or reservoir, of means for discharging fluid therefrom at intervals in its length, and a longitudinally-liexible receiver adapted t0 move along and conform in curvature to the curved portion or portions of the pipe and to receive the fluid discharged therefrom while maintaining a' fluid-tight connection therewith.

3. The combination, with a supply-pipe, or reservoir, of discharge-passages at intervals in the pipe, valves controlling the dischargepassages, iiexible levers in operative relation IOO therewith, and tappets for moving the levers to move along it and to open the valves by so as to open the valves. moving the tappets. 1o

4. The combination, with a supply-pipe, or In testimony whereof I have hereunto set reservoir, of discharge-passages at intervals my hand.

in the pipe, valves controlling the disoharge- WILLIAM S. l-IALSEY. passages, iiexible levers in operative relation Witnesses: l therewith, tappets engaging the levers, and ETHEL GALLAGHER,

a receiver surrounding the pipe and adapted M. S. MURPHY. 

